Well, at least he had the courtesy to ask. Most would simply assume her name was spelled the way they thought it should, and leave it at that, however incorrect it was.
"I don't know anything about the man himself," she replied. "I don't think I've seen him before, and I've a pretty good memory, but it's not perfect." She shrugged. "He did have Mister Thorntwaite's wand, though. Eyelop fire-called Lisa, his assistant, this morning after he woke up. He was in a panic because he thought he'd left his wand at work. She checked the security logs to see if he'd left with it, and there was a record of it being presented last night."